2 ratio 3,so, 2+3=5
15/5=3 add and then division
<span>Give
the solution proportion of the given number
=> x : 45 = 8 : 18
=> Let’s start solving the proportion
=> 45 * 8 = 360
=> 360 / 18 =20
Thus the answer is letter B. X = 20
let’s check if we have correct answer
=> 20 * 18 = 360
=> 360 / 45 = 8
=> 20 * 18 = 360
=> 360 / 8 = 45
Thus, we have the same answer.
</span>
Answer: 106
Step-by-step explanation: you have a total of 180 degrees in there, so you only gotta find the unknown value of the other side so you do 180 - 64 which is 116. then you see that in order to get 116 you gotta add it times ten which you are gonna subtract by 10 which is 106, and 106 will be your answer.
I do believe that the answer would be A)
Answer:
a₁ = 16
Step-by-step explanation:
The sum to infinity of a geometric series is
S ∞ = 
where a₁ is the first term and r the common ratio , then
= 20
= 20 ( multiply both sides by 0.8 to clear the fraction )
a₁ = 0.8 × 20 = 16
